class CountAllocDealloc {

  public:

      CountAllocDealloc(int* alloc_count, int* dealloc_count)

          : _alloc_count(alloc_count), _dealloc_count(dealloc_count) {

        (*_alloc_count)++;

      }

      ~CountAllocDealloc() {

        (*_dealloc_count)++;

      }

  private:

    int* _alloc_count;

    int* _dealloc_count;

};

template<typename T>

struct FreePtr {

  void operator()( T * t ) noexcept

  {

    if(t != nullptr) {

      delete t;

      t=nullptr;

    }

  }

};